Atoms and elements

Science

Properties of elements

Metallic elements

Molecular elements

Common elements

Compounds and their formation

Chemical formulae

Naming compounds

A particle model of chemical reactions

In the Understanding Chemical Reactions unit, pupils will build on their knowledge of atoms, elements, and compounds to learn about how atoms rearrange to form new substances during chemical reactions.

In the Solid, Liquid and Gas States and Changes of State unit, pupils learned to categorise substances and understand particle behaviour during changes of state.

This unit explores the basic atomic model, the differences between atoms, elements, and compounds, and the varying physical and chemical properties of elements. It covers chemical symbols, formulae, SI units, and IUPAC nomenclature, emphasising their use in describing elements and compounds.

Atoms, elements and compounds

What is the basic building block of all matter?

Substances made up from one type of atom.

Chart on which all the existing elements are arranged.

Shortened representation of an element's name.

According to Dalton's model of an atom, how are atoms represented?

Arrange the following in order of size from smallest to largest.

Match the following symbols to the element.

C always stands for the substance carbon.

Which of the following statements are correct?

To measure the temperature of a substance.

To view things which are too small to see.

What happens to the overall mass when substances are mixed together?

Order the different units of mass from smallest to largest.

It contains different types of particles.

Which of the following is a feature of a pure substance?

Everything is made up of particles. The shape of a particle is 3D and is represented as a ...

Which of the following diagrams represents more than one substance?

Exit Quiz

What is the basic building block of all matter?